Software architecture practices are methods and techniques that allow software designers and developers to make designs that hopefully strike the right balance between competing quality attributes: modifiability, performance, availability, security, etc.

However, in the midst of a threatening climate crisis and with an energy crisis on top of that, an important quality, namely energy efficiency, must be considered as well: for all the merits of a cool microservice architecture, will it also save precious energy compared to the classic monolith?